Temporary binder.



7 No- 830,579. PATENTED SEPT. 11, 1906 T. R. EDDY.

TEMPORARY BINDER.

AiPLIOATION FILED SBPT.23,1904.

2 SHEETS-SHEET 1.

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PATENTED SEPT. 11

T.R.EDDY. TEMPORARY BINDER.

APPLICATION FILED SEPT.23,1904.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE. THOMAS R. EDDY, or CHICAGO, ILLINOIS, ASSIGNOR TO WALLACE O. ABBOTT, or CHICAGO, ILLINOIS.

TEMPORARY BINDER.

Specification of Letters Patent.

Patented Sept. 11, 1906.

1 To all whom, it may concern:

,loose leaves, the construction being such that loose leaves can be easily and conveniently taken from or added to said binder.

- Among the salient objects of the invention are to provide in a binder of the character referred to improvements in the construction and arrangement of the impaling-prongs and in the actuating mechanism therefor, to provide a' back member or casing for the actuating mechanism which affords a perfectly smooth and uninterrupted base or platformlike portion for the rear edges of the leaves to rest upon, to provide a flat-opening binder with cover members so attached thereto that the upper surfaces of the cover members lie flush with the upper surface of the base or back member and constitute a convenient support for the leaves, whereby it is easy to write upon any part of the leaf when the binder is in the open position, and in general to provide such improvements in the construction and arrangement as will produce a binder which is new, simple, eflicient, and economically manufactured.

To the above ends the invention consists in the matters hereinafter referred to and will be readily understood from the following description, reference being had tothe accompanying drawings, in which Figure 1 is an elevation of a binder embodying the invention and shown with the covers in the open position. Fig. 2 is a plan view of the same in open position. Fig. 3 is anend view of the binder mechanism in closed position. Fig. 4 is a similar view of the binder mechanism in the open position. Fig. 5 is a top plan view of a binder-casing and impaling-prongs, and Fig. 6 is a back or interior view of the same.

Referring to the drawings, 1 designates as '6 whole a back or casing comprising in the present form an oblong box-like casing open at its rear or under side and provided with pairs of oppositely disposed openings 2v through the corners of said casing.

3 designates a pair of angle bearing-plates mounted transversely across the interior of the casing and supporting therebetween at their ends two impaling-prong bars 4 4, adapted to be rotated partially in a manner and for a purpose hereinafter described. Said bars 4 are provided with impalingprongs 5 5, projecting through the openings 2 and having interfitting endto end engage ment with each other, as clearly illustrated in the closed and open positions shown in Figs. 3 and 4. Thebars 4 4 are provided with longitudinally-extending grooves 6 6, extending in a spiral direction through a portion of the length of said bars, said grooves being oppositely disposed and facing each other and being the reverse of each other as to the directions they run spirally.

7 designates a connecting member of elongated band like construction extending around and between the bars 4 4 and sliding at its ends thereupon. Between the sides of said member 7 and between the bars 4 4 is an actuating member 8, the ends of which project into the grooves 6 6, as clearly indicated at 9, Fig. 3. A rod 10, connected with said connecting and actuating members, as at 11, extends longitudinally of the casing and out at the end thereof, as at 12, and is provided at its outer end with a thumb-ring 13, by means of which said rod 10 is reciprocated. It will be understood that as the connecting and actuating members are moved back and forth upon the bars 4 said bars are partially rotated because of the engagement of the ends of said actuating member 8 with said grooves 6. The rotation of the bars 4 moves the impaling-prongs 5 into open and closed position, as shown, respectively, in Figs. 4 and 3. It is to be noted in this connection that the openings 2 through the casing 1 are of such length as to permit of a considerable opening movement of the impaling-prongs and that the prongs are opened in proportion to the outward movement of the rod 10.

Referring to Fig. 2, 14 designates the cover members, connected together by a flexible member 15, said cover members being of any desirable and suitable material, but preferably of such material as is stiff enough to serve as a support for the open leaves when writing upon them. 17 designates a-bottom or cap plate adapted to fit over the casing 1 and clamp between itself and said casing 1 a flexible strip 18, which is attached at its free ends to the cover members, as at 19 and serves to hold said cover members drawn up close to the edge or corner of the casing 1 in such manner that the upper surfaces of the cover members and the casing 1 are flush with each other, as clearly shown in Fig 2. After said cap-plate 17 is put over the casing 1 with the flexible strip 18 therebetween said cap-plate and said casing are riveted together, thus constituting a boX,within which the bars 4 4 and the actuating mechanism therefor are inclosed.

The above-described construction is particularly adapted to price-books and the like, but may obviously be embodied in binders for various other kinds of books.

I claim 1. In a temporary binder, the combination with the impaling-prongs thereof, of an actuating mechanism therefor comprising a bar operatively connected with said impalin -prongs and provided with a longitudina ly-extending groove or channel running in a spiral direction, and a reciprocatory member having engagement with said groove, whereby the movement of said member operates said impaling-prongs, for the purpose described.

2. In a temporary binder, a casing or back member, a pair of bars rotatably mounted within said casing and carrying impalingprongs, said bars being provided with spirallyeXtending grooves or channels, a reciprocating member slidably mounted upon saidbars and having a part engaging said grooves, and means for movin said reciprocatory member to actuate said bars and impaling-prongs.

3. A temporary binder, comprising in combination a box-like casing of oblong construction, a pair of bars mounted longitudinally therein and carrying impaling-prongs, said bars being provided with spirally-extending grooves or channels oppositely disposed with relation to each other, a reciprocatory member operatively connected with said bars and said grooves, whereby. the movement of said member simultaneously rotates said bars in opposite directions, cover members mounted upon said casing, and flexible strips secured to the edges of said box-like casing and to the inner edges of said covermembers, whereby the latter are held so their upper or inner surfaces when open are flush with the upper surface of said box-like casing, substantially as and for the purpose described.

THOMAS R. EDDY.

Witnesses:

HoYT N. MOCLAIN, JAMES W. RANsoN. 

